Technical Manual Hitachi ZX85USB-5A Hydraulic Excavator | TODEE-EN-00 (2017.03.24)

Technical Manual Hitachi ZX85USB-5A Hydraulic Excavator TODEE-EN-00 (2017.03.24) (Preview)

TODEE-E-00
INTRODUCTION
To The Reader
Additional References
Manual Composition
Page Number
Safety Alert Symbol and Headline Notations
Units Used
SYMBOL AND ABBREVIATION
SECTION AND GROUP CONTENTS
SECTION 1 GENERAL
Group 1 Specifications
Specifications ZX85USB-5A
Working Ranges ZX85USB-5A
Specifications ZX85USB-5A (with 2-piece Boom)
Working Ranges ZX85USB-5A (with 2-piece Boom)M1P1
Group 2 Component Layout
Main Component
Electrical System (Overview)
Electrical System (Rear Tray)
Electrical System (Switch Panel)
Around Pump Device
Electrical System (Around Battery)
Engine
Control Valve
Pump Device
Swing Device
Travel Device
Group 3 Component Specifications
Engine
Engine Accessories
Hydraulic Component
Electrical Component
SECTION 2 SYSTEM
Group 1 Controller
Outline
CAN Circuit
Group 2 Control System
Outline
Engine Control
Pump Control
Valve Control
Other Control
Group 3 Hydraulic System
Outline
Pilot Circuit
Main Circuit
Group 4 Electrical System
Outline
Main Circuit
Electric Power Circuit (Key Switch: OFF)
CAN Circuit
Accessory Circuit
Starting Circuit (Key Switch: START)
Charging Circuit (Key Switch: ON)
Surge Voltage Prevention Circuit
Pilot Shut-Off Circuit (Key Switch: ON)
Auto Shut-Down Circuit
Engine Stop Circuit (Key Switch: OFF)
Engine Stop Circuit
Monitor Circuit
Security Circuit
Radio Circuit
Air Conditioner Circuit
Accessory Circuit
Work Light Circuit
Wiper/Washer Circuit
SECTION 3 COMPONENT OPERATION
Group 1 Pump Device
Outline
Main Pumps 1, 2, 3
Regulator for Main Pumps 1, 2
Regulator for Main Pump 3
Pilot Pump
Group 2 Swing Device
Outline
Swing Reduction Gear
Swing Motor
Swing Parking Brake
Valve Unit
Relief Valve
Group 3 Control Valve
Outline
Hydraulic Circuit
Flow Combiner Valve
Main Relief Pressure Selection
Boom Anti-Drift Valve
Main Relief Valve
Overload Relief Valve
Group 4 Pilot Valve
Outline
Operation (Front Attachment / Swing and Travel Pilot Valves)
Operation (Auxiliary, Blade, Positioning, and Boom Swing Pilot Valves)
Shockless Function (Only for Travel Pilot Valve)
Group 5 Travel Device
Outline
Travel Reduction Gear
Travel Motor
Parking Brake
Travel Brake Valve
Overload Relief Valve
Travel Mode Control
Group 6 Others (Upperstructure)
Pilot Shut-Off Solenoid Valve
Shockless Valve
Swing Shockless Valve
2-Spool Solenoid Valve Unit
Pilot Relief Valve
Engine Fan Clutch
Group 7 Others (Undercarriage)
Swing Bearing
Center Joint
Track Adjuster
SERVICE MANUAL REVISION REQUEST FORM